maki/openairinterface5g
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

fix blocking bugs in command nr_dlsim -n100 -e27 -s35 -b 273 -R273 -x4 -y4 -z4

Browse Source 
use a better complex vector multiplication function
This commit is contained in:
Laurent THOMAS
2024-11-07 17:08:18 +01:00
parent 89b7ce5eb9
commit 07b9daa762
4 changed files with 56 additions and 35 deletions
Download Patch File Download Diff File Expand all files Collapse all files
openair1/PHY/nr_phy_common/src/nr_phy_common.c
+3 -4
View File
@@ -141,14 +141,13 @@ void nr_64qam_llr(int32_t *rxdataF_comp, int32_t *ch_mag, int32_t *ch_mag2, int1
int32_t *llr_32 = (int32_t *)llr;
#ifndef USE_128BIT
simde__m256i xmm0, xmm1, xmm2;
for (int i = 0; i < (nb_re >> 3); i++) {
xmm0 = *rxF;
simde__m256i xmm0 = simde_mm256_loadu_si256(rxF);
// registers of even index in xmm0-> |y_R|, registers of odd index in xmm0-> |y_I|
xmm1 = simde_mm256_abs_epi16(xmm0);
simde__m256i xmm1 = simde_mm256_abs_epi16(xmm0);
// registers of even index in xmm0-> |y_R|-|h|^2, registers of odd index in xmm0-> |y_I|-|h|^2
xmm1 = simde_mm256_subs_epi16(*ch_maga, xmm1);
xmm2 = simde_mm256_abs_epi16(xmm1);
simde__m256i xmm2 = simde_mm256_abs_epi16(xmm1);
xmm2 = simde_mm256_subs_epi16(*ch_magb, xmm2);
// xmm0 |1st 4th 7th 10th 13th 16th 19th 22ed|
// xmm1 |2ed 5th 8th 11th 14th 17th 20th 23rd|